Self-adjustable clipper



@ea il?, 1935!, c. M. HAvNs 2924,22@

SELF ADJUSTABLE CLIPPER Filed Oct. 5, 1952 2 Sheets-Sheet l ATTORNEY.

Das. E?, 1935. c. M. HAvENs I l 2,024,220 2 SELF ADJSTABLE CLIPPER Filed oct. s, 1932 2 sheets-sheet 2 Patented Dec. 17, 1935 UNITED STATES PATENT OFFICE SELF-ADJUSTABLE CLIPPER San Francisco, Calif.

Application October 3, 1932, Serial No. 635,893

'7 Claims.

My invention relates to self -adjustable clippers, and more particularly to clipping devices, which are used for the purpose of 'cutting hair.

The main object of the invention is to provide 5 an adjustment which may be easily attached to the conventional type of clipper which is either manually or automatically operated and which may be provided with means whereby the said clipper, while in use, will gradually adjust itself,

10g so as to cut hair at a gradual taper, and therefore, eliminate as much as possible theA hand operation or hand trimming by the operator.

A further object of my invention is to provide said clipping attachment with means of such ,construction whereby the said attachment may be adjusted to any desired hair length, and which may be kept in that position until the work is performed by the operator.

A further object of my invention is to provide `said adjusting means oi said attachment with a tripping device, so that when it is desired to cancel any adjustment made, while said device is in use, it may be easily tripped and allow the operator to cut the hair at any desired length which will correspond to the contour of the object upon which said clipping device is being used.

Other objects and advantages of my invention may hereinafter more fully appear, I attained by the construction described in the speciiication and illustrated on the drawings, forming a part of my application. Reference is had to the accompanying drawings in which the reference characters denote similar parts.

In the drawings:

Fig. 1 is the perspective view of the clipper, having my invention attached thereto.

Fig. 2 is the bottom View thereof, showing the comb.

Fig. 3 is the cross-sectional view of the clipper vshowing my invention in position taken on the line 3 3 of Fig. 2.

Fig. 4 is the transverse cross-sectional view thereof, taken on the line 4 4 of Fig. 3.

Fig. 5 is the cross-sectional view thereof taken on the line 5 5 of Fig. 4.

Fig. 6 is the cross-sectional view of the comb pivot point taken on the line 6 of Fig. 5.

Fig. 7 shows the 'cross-sectional View of my invention in modified form.

Fig. 8 is the transverse cross-sectional view taken on the line 8 8 of Fig. '7.

Fig. 9 is the enlarged cross-sectional View taken on the line 9 9 of Fig. 8.

Fig. 10 is an enlarged cross-sectional View taken on the line III-I0 of Fig. 8.

Fig. 11 is the cross-sectional view of the operating bar taken on the line I I I of Fig. l0.

Fig. l2 is the side-elevational View of the comb.

Describing my invention more in detail, said invention comprises an attachment generally designated by numeral 2, which may, if so desired, be attached to the conventional clipper 4, by means of screws 6, (see Fig. 3) or made substantially a part thereof.

Said attachment 2, comprises a base plate 8, having a pair of hinge pins 0, positioned at ea'ch side thereof as at i2, to which plate a comb member I4 is hingedly connected and held therein by means of a tension spring I6, as shown.

The said base plate 8, is equipped with a center 15 pivot pin I8, which may be supported or held in place byv the stud pin member 20, of the clipper 4. The pivot pin I8, is equipped With a collar 22, as shown (see Fig. 5) which is adapted to hold a cam drum member 2d, in place, said drum member comprising a retaining section 26, adapted to be placed in a recess 28, of the said base plate 8.

The said retaining section 26, is recessed as at 30, forming a ridge 32, upon winch I have placed a plurality of serrations 34, the purpose of which will be presently described.`

The downward extension comprising the inclined base of the said drum member 24, is faced at an angle adapting said extension to bear against a plate 36, which is internally connected 30 to the said comb` member I4, as shown.

The pivot pin I8, is equipped with an under cut 38, wherein I have positioned a ball member and a pressure spring 42, which is adapted to hold said ball member 4G against the inner surface 44, of the retaining section 26 and to operate said pivot pin I8 I have placed an operating lever 46, in the socket 4t, said pin having an extension as at 50, protruding through a clearance between 52 of the base plate 8, and the slot 54 40 of the clipper plate 56, and which extension is adapted to engage the movable clipper section 5 as shown.

Internally Within said drum member 24, I have positioned a tension spring 6I), which has one 45 end thereof attached to the said drum member 24, as at 62 and the other end attached substantially to the said pin I8, as at 64.

For the purpose of retaining said drum member 24, in any desired position, I have provided a regulating member 66, Within a slot 68, of the said base plate 8, said regulating member comprising an engaging section 10, which is adapted to be received by said serrations 34, and having a tong 12, extending therefrom and having a 55 stem 14, extending through a socket 1B, wherein I have positioned a compression spring 18, adapted to be engaged with the said stem 14, and held in place by means of a nut 88 as shown.

The said plate 8, is also equipped with a plurality of eyelets 82, wherein I have positioned a tripping lever 84, hingedly positioned therein as at 86, and having an extension 88, adapted to engage the said stem 14.

In operation the said extension 50, of the operating lever 46, is engaged with the cutting member 58, and by motion produced by the movement of the clipper handles 80, will oscillate the pin I8, by causing the ball 48 to engage the surface 44, and the drum member 24 is caused to rotate, by means of the engaging member 18, positioned within said serrations 34.

The circular movement of said drum member 24, will cause the comb member I4, to move about the pivot point I8, because the angular surface of the inclined base 35 of said drum 24, bearing against the plate 3S, and said rotation causes the spring 68 to be extended within said drum member 24, so that when it is desired to bring the comb member I4 to its original position, the tripping lever 84, may be operated for causing the extension S8 to engage with the stem 14, forcing the said engaging section 10 out of the serrations 34, and forcing the tong 12 against the ball member 48, thus immediately releasing the said member 24, and by contractive action of the spring 68, said drum 24 is returned to its original position While the action of said spring I6 forces the comb member I4 to its place.

In Fig. 2, I have shown the bottom of the said comb member I4, provided with a plurality of comb ends 82, and arranged in such a manner, that when the hair is cut and removed, the said comb ends will gather the hair allowing said cutting member 58 of the clipper 4- to cut evenly. Also for the purpose of allowing the said clipper 4, to be used in places of close angular conguration, I have provided the rear section of the said comb member I4 with a uniform radius as at 94, as shown in Figs. 1-3-5.

In Fig. 7, I have shown my invention in modied form, wherein I have provided a hinged comb member I4', connected to the base plate 8', and which may if so desired, be attached to the conventional clipper 4 by means of screws 6.

The said comb member I4', is equipped with a slot |88 (see Fig. 12) which is adapted to be engaged with pins |02, of the adjusting bar |04.

Said bar |84, held in position by means of a screw |06, is provided with an extension |08, extends rearwardly beneath the release member ||0, and is held in place against the base plate 8', by means of a plurality of supporting blocks IIE, as shown in Figs. 7, 8, 9.

The sides II4 of the said extension |08, are provided with tooth shaped serrations I I6, adapted to engage a plurality of pawls I|8 and |20, pivoted as at i122 and |24 respectively, which are held against the said serrations I6, by means of a spring |26, and supported in place by means of a screw |28, as shown.

The pawl |20 pivoted as at |24, is connected to a bell crank member |38, fulcrumed as at |32; said fulcrum extending through the said base plate 8 is connected to an operating member |34, to which an operating lever |36 is hingedly connected by means of a hinge pin |38, as shown in Figs. 8-10-11.

The said bar |84 is held in position by means of a plurality of springs |40, and the bell crank member is held in place by means of a spring |42, the operation of which will be presently described.

The said release member ||8, provided with side extensions |44, has in the center thereof an 5 opening |48, adapted to be engaged by an extension pin |48 of the tripping lever 84, pivoted as at 86'.

In operation, the outer end of the operating lever |36 is engaged with or rather bears against 10 the end of the cutting member 58 and by movements thereof causing an oscillating movement of the operating member |34, which will cause the bell crank member |38, by means of the pawl |28, to successively engage the serrations IIB, 15 having the pawl IIS, constantly engaged with said serrations i IS, thus keeping the bar member |84 in extended position and thus forcing the said comb member I4 downwardly about the pivot point |50. 20

When it is desired to stop said bar |84 in any desired position, the said operating lever |36 may be disengaged from the end of the cutting plate 58 by simply lifting the end of the lever to swing same on pivot |38; also, if it is desired to return 25 the said bar |84 into its original position, the tripping lever 84' by means of extension pin |48 in forcing said release member ||0 forwardly, will disengage the pawls I I8 and |28 respectively, by means of the said side extension |44, causing 30 the spring members |40, to move back the said bar |84, and consequently the comb member I4' will be brought back into its original position, as previously described.

While I have thus described my invention with great particularity it will be clear that the same may be modied throughout a wide range. I, accordingly, do not propose to be limited to the exact details of construction herein shown and described, but reserve the rights in practice to make any modications, which may come within the scope of the appended claims.

Some features of the modified form of the invention shown in Figures 7 to 12 not claimed 45 herein are claimed in my copending application filed under Serial No. 39,760 on September 9, 1935, entitled Tapering hair clipper, and which is a continuation in part of the present application. 50

I claim as my invention:

1. In the attachment for clipping devices of the character described having a clipper plate, a base plate, adapted to be connected to the said clipper plate of said clipping device, a pivot pin associated with said base plate, a drum member having a downwardly extending inclined base associated with said pivot pin, a comb member section pivotaliy connected to said base plate and adapted to be engaged with said inclined base of said drum member, means associated with saidy drum member to hold it in position and upon said pivot pin and means associated with said pivot pin to revolubly operate said drum member about said pivot pin, a resilient means internally positioned within said drum member to counteract the drum member movement, means associated with said pivot pin and frictionally engaging said drum member to hold said drum member in position, tripping means associated 7|) with said base plate and said drum member adapted to release said drum member and means connected to said pivot pin and adapted to oscillatively operate said pivot pin and cause said drum member to rotate about the said pivot pin thus pivoting and extending said comb member section from the said clipping device.

2. In the attachment of the character described, having a comb section and adapted to be used in connection with a hair clipping device, a base plate connected to the clipper plate of said clipping device and having a center pin centrally positioned therein and extending downwardly, hinging means positioned at the sides of said base plate, comb member means hingedly connected to said hinging means of said base plate and having a wearing plate connected thereto internally positioned therein, a drum member means having a downwardly extending inclined base and rotatably associated with Said center pin in juxtaposition and bearing upon the said wearing plate of said comb member means, and operating means connected to said center pin and said drum member means so that the comb member means may be hingedly operated.

3. In the attachment of the character described adapted to be connected to a hair clipping device having a clipper plate provided with a comb member means, a base plate means connected to said clipper plate by means of a stud pin member means, center pin means rotatably associated with said stud pin member. means, a drum member means having an inclined base and rotatably associated with said center pin means, means encompassing said center pin means adapted to hold said drum member means in position and comb member means hingedly connected to said base plate means, so that by rotating said drum member means around said center pin means, with said inclined base bearing against the said comb member means, the latter may be caused to be graduaiiy and hingedly extended irom said clipper plate provided with said comb, frictionally engaging means associated with said center pin means and said drum member means to hold said drum member means in position, a. spring associated with said base plate means and said comb member means to counteract the action of the said comb member means and means connected to said center pin means adapted to rotate the said drum member means about the said center pin means by the reciprocating action oi the said hair clipping device.

4. In an attachment of the class described comprising a base plate means and a comb member means which is himgedly connected to said base plate having its comb ends held in place by means of a tension spring connecting said base plate means and bearing against the said comb member means; said attachment being adapted to be connected and operable by the reciprocating movement action of the cutting member of the hair clipping device, comprising in combination, a center pin means having a collar associated with said base plate and adapted to be reciprocally operated by the action of the cutting member of the said hair clipping device, said center pin means being provided with an undercut positioned in close proximity to said collar, a drum member means rotatably associated with said center pin means and having a retaining section at one end so that it may be held in place by means of said collar of said center pin, and having the other end provided with an inclined base, which is adapted to bear against the said comb member means, friction means positioned within said undercut and adapted to bear against the inner surface of the said retaining section of said drum, so that said drum may be rotated into various positions and in accordance with the reciprocating movement of said center pin means thus allowing said comb member means to be hingedly extended from said base plate means, resilient means connected to the said pin and said drum member means to counteract the rotation of the said drum member means, retaining means associated with said base plate means and the surface of said retaining section of said drum, so that said drum may be held in position during the reciprocating movement of the said center pin means and the hinged movement of the said comb member means and releasing means connected to said base plate means adapted to disengage the said retaining means, so that the comb member means may by the action of the said tension spring, be brought to its original position.

5. In the attachments of the class described, adapted to be used in connection with hair clipping devices having a clipper plate and a movable clipping member, the combination of, a base plate member means connected to said clipper plate, a comb member means hingedly connected to said base plate means, a drum member means rotatably associated with said base plate means and having a. downwardly extending inclined base to engage the said comb member means, means associated with said base plate means and engaged with the said movable clipping member adapted to rotate said drum member means allowing said inclined base to hingedly operate said comb member means, means associated with said base plate means adapted to hold said comb member means in position and against the said inclined base of the said drum member means, and means connected to said base plate means adapted to engage and hold said drum member means during its rotation or to release said drum member means for return to normal position.

6. In a hair clipper having a body and a pair of relatively slidable toothed clipping jaws at its forward end one over the other, a plate formed to cover the lower side of the body and to provide a space between the plate and the body, said plate terminating at its forward edge adjacent the cutting teeth of the lower jaw and hinged at its ends near its rear edge adjacent the sides of the body so as to permit its forward edge to swing outward from the body, means normally urging the plate to swing toward the body, and ratchet means positioned between the plate and the body, said ratchet means operatively connected to a movable part of the clipper and arranged to gradually force said plate to swing outward as the clipper is operated.

7. In a hair clipper having a body and a pair of relatively slidable toothed clipping jaws at its forward end one over the other, a plate formed to cover the lower side of the body and to provide a space between the plate and the body, said plate terminating at its forward edge adjacent the cutting teeth of the lower jaw and hinged at its ends near its rear edge adjacent the sides of the body so as to permit its forward edge to swing outward from the body, means normally urging the plate to swing toward the body, ratchet means positioned between the plate and the body, said ratchet means operatively connected to a movable part of the clipper and arranged to gradually force said plate to swing outward as the clipper is operated, and a finger-operated trip for said ratchet means permitting the plate to spring back to the lower jaw at any time.

CHARLES M. HAVENS. 

